Cheapest priced copy (Fallen Empires): $0.35 at Card Kingdom, near mint, their price list as of .
Thelon's Chant 
Enchantment · Uncommon · Fallen Empires · #76
At the beginning of your upkeep, sacrifice this enchantment unless you pay {G}.
Whenever a player puts a Swamp onto the battlefield, this enchantment deals 3 damage to that player unless the player puts a -1/-1 counter on a creature they control.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fallen Empires | 76 | Uncommon | $0.35 | — |
One ruling from Wizards of the Coast
- 4 October 2004Damages the player putting the land onto the battlefield, even if they are not the controller of the land after it is on the battlefield.